Pass B1 Passive Buffer Preamp. A good and simple option for chipamps?. - diyAudio
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Old 29th July 2008, 11:16 PM   #1
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Default Pass B1 Passive Buffer Preamp. A good and simple option for chipamps?.

The design is very simple and deals with the impedance problem of "passive preamps" ie pots, widely use with chipamps.

Surely lots of you are already following this topic but I thought it would be interesting to discuss it on the chipamp context.

This is the pre:

http://www.enjoythemusic.com/diy/070...eamplifier.htm

and this is the thread:

B1 Buffer Preamp

Regards

Antonio
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Old 30th July 2008, 02:31 AM   #2
mattjk is offline mattjk  United States
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i posted about it, no one seems to care. that circuit board it too big though!

Help a noob build Pedja Rogic's J-fet buffer
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Old 2nd January 2009, 02:04 PM   #3
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I've built a B1 buffer for my Gainclone.
Although the B1 is only a prototyping one, not well-tweaked yet, it sounds very good with Gainclone.
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Old 2nd January 2009, 02:27 PM   #4
AndrewT is online now AndrewT  Scotland
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most readers of the chipamp section don't have a clue about getting their chips to perform properly.
Source impedance will be completely beyond the majority.
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Old 2nd January 2009, 05:04 PM   #5
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Hi Andrew,

What kinds of improper are usually caused by most readers?

I am afraid that my chipamp performs improperly but I don't discover.
Please talk more about "chips to perform properly".
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Old 2nd January 2009, 05:34 PM   #6
AndrewT is online now AndrewT  Scotland
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do some research both here and from other reliable sources.
Most chipampers are not interested in learning.
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